Motor control apparatus
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jan 16, 2014
app pub date -
Jul 11, 2013
filing date -
Jul 13, 2012
priority date (Note) -
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Abstract
A motor control apparatus includes a motor that rotates a controlled object, an encoder that outputs a pulse signal in synchronization with a rotation of the motor, and a control section that performs a feedback control so as to rotate the motor to the target rotational position. The control section includes a stopping and holding control portion. The stopping and holding control portion performs a stopping and holding process in which the stopping and holding control portion supplies electric current to the motor so as to stop and hold the motor for a current-supply holding time. The stopping and holding control portion sets the current-supply holding time on the basis of a rotation speed of the motor just before the stopping and holding process.
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